Door fob



A. RUSH.

DOOR FOR ELEVATOR SHAFTS.

APPLICATION FILED .IUNEZI. 1919.

1 3 1 5, 795 Patented Sept. 9, 1919.

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Specification of Letters Patent.

Patented Sept. 9, 1919.

Application filed June 21, .1919. Serial No. 305,889.

To all whom z't may concern Be it known thatI, ALBERT Rosina citizen of the United States, residing at Colu1nbus, in the county of Franklin and State of Ohio, have invented a certain new and use ful Improvement in Doors for Elevator- Shafts, of which the following is a specifi cation.

The invention relating to elevator doors or gates has for its object to provide an improved construction whereby a vertically sliding door or gate can be made practically the full height of the doorway or carriage entrance.

The invention is embodied in the example herein shown and described, the features of novelty being finally claimed. 1

In the accompanying drawing-- Figure 1 is real ly a vertical. sectionab view showing three floorsof a building equipped with theinvention.

Fig. a similar scctionon a larger scale with the door and parts broken out to illustrate details of construction.

Fig. 3 is a horizontal. section on the line II-II, Fig. 2, to illustrate the details of construction of the door guide or channel and the engagement of the door therewith.

Fig. 4 is a side and sectional detail view like Fig. 2 showing. means for bridging the gap between the channel on the building and that. on the car.

In the views5 designates the several floors of a building adjacent the elevator shaft, and 6 the opening or doorway to the shaft. Each opening 6 is provided at the opposite sides thereof with parallel vertical channels like that shown at 7, said channels being deflected or inclined at their upper portions beyond the opening 6 as at 7 inward toward the shaft.

8 designates the several doors at the floors in the building. Each door is provided near its lower corners with laterally projecting stud shafts 9 containing antifriction rollers 10 that travel in or engage the channels 7 7. Said doors are also provided near their upper corners with similar rollers 11 that engage said channels. Each door has secured to it near each of the lower corners short bent arms 12 to which are connected chains 13, said chains being passed up over sheaves 14. Said chains 13 are provided with counter weights 15 to counten balance the door and render it easy to raise and lower.

16 designates the elevator car or carriage, the same to be equipped with the usual or any suitable hoisting apparatus (not shown) for raising and lowering it in the shaft or well. In the present instance the top of the car is equipped with a suitable frame 17, said frame including a. pair of inclined chair nels 18 forming a support and guiding means for the door, the mouths to said. channels at the lower ends being enlarged. The inclination of the channels 18 is such that when the car is stopped in that position where the floor of the car coincides with a floor of the building the tions 19 pivoted to channels 7, 7" as at 20 (see Fig. 4;) so as to avoid undue noise or clatter when the door is being raised. lVhen the dooris lowered the rollers 11 press upon the short arms 19 of said track sections 19 and hold them in raised position as indicated by broken lines Fig; 4. When the door is raised said track sections 19 fall. to operative position as shown in full lines: Fig. 4. i

In practice, therefore, when the car is stopped at a floor the door is raised by hand or otherwise and deflected by the upper walls of the channel portion 7 into the chan nels 18 on topof the car thereby leaving tliedoorway entirely clear for the passage of persons or freight from the car to the floor or reversely. When the door is thus raised the rollers 11 travel from the channels 7 and '7 into the channels 18. It will, of course, be necessary to lower the door completely before the car can be moved away to another floor, but this requirement promotes the safety of persons using the car.

Changes can beinade in the forms of the parts without departing from the gist of the invention claimed.

That I claim is 1. The combination with a building having an elevator shaft and doorways leading from the floors of the buildin to the shaft and a car to move vertically 111 said shaft, of sliding doors for the doorways, and a support on the car to receive a door when it is raised to open a doorway.

2. The combination with a building having an elevator shaft, doorways leading from the floors of the building to the shaft and a car to move in said shaft, doors for said doorways, guiding means on the doorways for guiding said doors vertically and guides mounted on the top of the car to receive a door when the same is raised to open the doorway.

3. The combination with a building having an elevator shaft, doorways leading from the floors of the building to the shaft and a car to move in said shaft, vertically sliding doors for said doorways and guides mounted on the top of the car to receive a door when the same is raised to open the doorway.

4. The combination with a building having an elevator shaft, doorways leading from the floors of the building to the shaft, and a car to move in said shaft, vertically sliding doors for said doorways, a support on the top of the car to receive a door when raised, and deflecting means for guiding the door onto said support.

5. In combination, a car, a doorwaypast which the car moves, a door for the doorway, means on the car for receiving the door, and guiding means for directing the door when moved from the car to close the doorway and from the doorway to the car when the door is to be opened.

6. The combination with a building having an elevator shaft, doorways leading from the floors of the building to the shaft, a car to move in said shaft, doors for said doorways, guiding means on the doorways for guiding said doors vertically, guides mounted on the top of the car to receive a door when the same is raised to open the doorway and movable track sections for bridging the gaps between the guiding means on the doorway and the guides on the top of the car.

7. The combination with a building having an elevator shaft, doorways leading from the floors of the building to the shaft, a car tomove in said shaft, doors for said doorways, guiding means on the doorways for guiding said doors vertically, guides mounted on the top of the car to receive a door when the same is raised to open the doorway and movable track sections for bridging the gaps between the guiding means on the doorway andthe guides on the top of the car, and means on the door for moving said movable track sections out of operative position when the door is lowered.

8. The combination with a building having an elevator shaft, doorways leading from the floors of the building to the shaft, a car to move in said shaft, doors for said doorways, guiding means on the doorways for guiding said doors vertically, guides mounted on the top 'of the car to receive a door when the same is raised to open the doorway and pivoted track sections for bridging the gaps between the guiding means on the doorway and the guides on the top of the car. 7

9. The combination with a building having an elevator shaft, doorways leading from the floors of the building to the shaft, a car to move in said shaft, doors for said doorways, guiding means on the doorways for guiding said doors vertically, guides mounted on the top of the carto receive a door when the same is raised to open the doorway and pivoted track sections for bridging the gaps between the guiding means on the doorway and the guides on the top of the car, and means on the door for moving said pivoted track. sections out of operative position when the door is lowered.

ALBERT RUSH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, .D. G. v 

